Owners of household appliances are often faced with a situation when the refrigerator stops freezing, and the first thought is a lack of coolant. If you are wondering what kind of freon is in the Atlant refrigerator, then it is important to understand that the answer depends on the year of manufacture and the specific model of the unit. The Belarusian manufacturer uses different types of refrigerants depending on environmental standards and technical requirements of the time.
Modern models are most often charged with environmentally friendly gases, such as R600a (isobutane), which are highly efficient and safe for the ozone layer. Older versions produced in the early 2000s may contain R134a or even obsolete R12which is now almost out of circulation. Accurate knowledge of the gas brand is necessary not only for proper repairs, but also for selecting the appropriate compressor and oil.
An attempt to fill the system with the wrong gas can lead to compressor failure or even an explosion if incompatible substances are mixed. Therefore, before calling a technician or looking for a gas cylinder, it is necessary to accurately identify the type of refrigerant installed at the factory. In this article we will analyze in detail all the nuances associated with labeling, signs of leakage and the characteristics of various types of freon used in Atlant technology.
How to find out the brand of freon by nameplate and documentation
The most reliable way to determine what kind of gas circulates in the system of your refrigerator is to study the technical documentation or nameplate. It is usually located on the back wall of the case, inside the chamber on the side wall or under the bottom vegetable drawer. Look for a sticker with a barcode, which indicates the model, serial number and technical parameters.
This sticker often contains the column “Refrigerant” or “Refrigerant”, next to which there is a marking, for example, R600a or R134a. If the sticker is worn off or missing, you can refer to the product data sheet that was included with the purchase. The exact characteristics are always stated there, including the type and weight of the gas to be filled, as well as the brand of recommended oil.
It is important to understand that it is impossible to visually determine the type of gas, since all of them are colorless and odorless. Misidentification can lead to serious consequences, therefore never try to determine the type of freon by touch or smell - this can be hazardous to health. If the documents are lost and the sticker is not readable, it is better to contact an authorized service center indicating the exact model.
⚠️ Attention: Never pierce the cooling system tubes to “check” the gas. This will lead to instant depressurization and moisture entering the circuit, which will require a complex and expensive evacuation procedure.
It is also worth considering that in two-compressor Atlant models, the same type of refrigerant can be used in the freezer and refrigerator compartments, but their circuits are independent. This simplifies diagnostics, since the technical requirements for gas are the same for the entire device. However, in rare cases of hybrid systems, the parameters may differ, which requires careful study of the circuit.
Main types of refrigerants in Atlant refrigerators
The history of the production of Atlant refrigerators covers several decades, during which safety and efficiency standards have changed. As a result, three main types of refrigerants can be found in different product lines. Each of them has its own physical properties, requirements for compressor oil and operating features.
The most common in modern models is isobutane (R600a). It is a hydrocarbon gas that has excellent refrigeration performance and low energy consumption. It is completely soluble in mineral oils, making it easy to return the lubricant to the compressor. However, isobutane is a flammable gas, which requires special care when carrying out repair work using open flame.
The second most popular type is R134a (tetrafluoroethane). This freon replaced R12 freon and was the standard for household appliances for a long time. It does not burn, is not toxic, but requires the use of synthetic oils (polyester), which are very hygroscopic, that is, they actively absorb moisture from the air. Moisture entering a system with R134a can lead to the formation of acids and blockage of the capillary tube.
Why can’t you mix different types of freon?
Mixing different refrigerants (for example, R134a and R600a) leads to changes in system pressure and lubricating oil properties. This causes the compressor to overheat, reduce cooling efficiency and can lead to an explosive situation or fire.
The third type - R12 (dichlorodifluoromethane) - can only be found in very old models produced before the mid-90s. This gas destroys the ozone layer, so its production and use are now limited by international agreements. If your old Atlant refrigerator runs on R12, during repairs it is often replaced with R134a, but this requires a complete flushing of the system and an oil change.
Correspondence table for freon models and types
To make it easier to find information, we have systematized data on the most popular series of Atlant refrigerators. Please note that within the same series there may be modifications with different compressors, so always check the specific marking on your device.
| Atlant refrigerator series | Refrigerant type | Years of manufacture (approximately) | Features oils |
|---|---|---|---|
| XM-4000, XM-4010 | R134a | 2000 – 2010 | Synthetic (POE) |
| KCD 280, KCD 2120 | R600a | 2012 – present | Mineral |
| MXM 2808, MXM 2819 | R600a | 2015 – present | Mineral |
| Old models (before 1998) | R12 | 1980 – 1998 | Mineral |
As can be seen from the table, there is a clear trend of transition to more environmentally friendly and economical gases. Modern models of the series KCD and MXM are almost always equipped with compressors for isobutane. This makes them quieter in operation, but imposes certain restrictions on the installation location - away from open sources of fire.
If you are planning self-diagnosis, use the table data as a guide, but not as an absolute truth. The plant could make changes to the design depending on the availability of components. For example, during the transition period of 2010-2012, models with both R134a and R600a could be found in one batch.
Signs of freon leakage and the need for refueling
Freon in a working refrigerator circulates in a closed circuit and is not consumed during operation. If the system is sealed, the gas can last for decades without loss. However, if you notice that the Atlant refrigerator has stopped freezing, this often indicates a depressurization of the system and a refrigerant leak.
A leak can be determined by a number of indirect signs. First of all, pay attention to the operation of the compressor: if it turns on frequently, works non-stop, or, conversely, does not turn on at all (the thermal relay is triggered), this is an alarming signal. Also, a uniform layer of frost may disappear on the evaporator, appearing only in one corner or at the entrance of the tube.
Other symptoms of freon deficiency are:
- 🌡️ The temperature in the chambers is higher than normal, products begin to deteriorate faster than usual.
- 💧 The appearance of puddles of water under refrigerator or at the bottom of the refrigerator compartment due to an incorrect defrost cycle.
- 🔊 The compressor is overheating, its housing becomes hot to the touch.
- 🧊 In the freezer, instead of hard ice, soft porridge or ice forms only at the walls.
⚠️ Attention: If you find an oily stain on the floor under the refrigerator or on the pipes in the back, this is almost guaranteed to indicate a freon leak along with the oil. In this case, simple refilling will not help - searching and soldering the damage site is required.
Often leaks occur in places where tubes are soldered, in the foamed part of the body (where the door perimeter heating circuit runs) or due to corrosion of the evaporator. In the latest Atlant models with a foamed evaporator (“crying back”), corrosion can occur due to damage to the integrity of the protective layer when defrosting with a knife.
The process of replacing and refilling the refrigerator
Replacing freon in an Atlant refrigerator is a complex technical process that cannot be performed without special equipment. To work, you will need a vacuum pump, a pressure gauge station, scales for precise dosing of gas and tools for soldering copper pipes.
The process of restoring the system's functionality begins with finding and eliminating leaks. The technician cuts off the filter drier, connects nitrogen for pressure testing, and uses a soap solution or a leak detector to find the fistula. After sealing the hole, the system is vacuumed.
☑️ Stages of professional refueling
Evacuation is a critical stage, especially for freon R134a. It is necessary to remove all air and, most importantly, moisture from the circuit. Residual moisture in a system with synthetic oil will lead to the formation of an ice plug in the capillary and failure of the unit. The vacuum process takes at least 30-40 minutes.
After creating a vacuum, refueling is carried out. The amount of gas is strictly regulated by the manufacturer (usually from 30 to 60 grams for household models). An overdose of freon is just as dangerous as an underfill: it can lead to water hammer in the compressor and its breakdown. Gas is charged in the liquid phase through the Schrader valve, after which the service pipe is sealed.
Common mistakes during self-repair
The desire to save on the services of a technician often leads owners of Atlant refrigerators to fatal mistakes. The most common of them is an attempt to simply “add gas” without looking for leaks and vacuuming. This gives a temporary effect for several days, after which the problem returns and air accumulates inside the system.
Another mistake is using the wrong oil. If the system was R134a (requiring synthetic oil), and the technician filled in mineral oil, the compressor will jam in a short time due to lubrication failure. Conversely, synthetic oil in a system with R12 or R600a can cause a chemical reaction or separation.
Also, inexperienced repairmen often neglect to replace the filter drier. This element is inexpensive, but performs a vital function - it retains moisture and oil breakdown products. When refilled, an old filter can become a source of contamination, and all work will go down the drain.
Remember that modern refrigerants, especially isobutane, require compliance with safety precautions. A spark from a blowtorch or static electricity in concentrated gases may cause an ignition. Therefore, work should be carried out in a well-ventilated area with all safety precautions.
FAQ: Frequently asked questions
Is it possible to refill an Atlant refrigerator with freon from a car air conditioner?
Absolutely not. Car air conditioners usually use R134a freon, but it often contains additives (dyes, phosphors, special oils) that are not intended for refrigeration systems. In addition, the pressure and properties of oils may differ. Using automobile gas will cause damage to the compressor of a household refrigerator.
How much does it cost to refill an Atlant refrigerator with freon?
The cost depends on the region, the type of freon and the complexity of the work. Refilling R600a may cost less due to the lighter weight of gas, but requires more caution. The price usually includes a technician’s visit, diagnostics, evacuation, and the gas itself. It is better to check the exact amount at the service centers in your city, as prices change.
Why does the refrigerator freeze after refueling, but after a week it stops?
This is a classic sign that the leak was not found and repaired. The master simply added gas to the leaky system, and it came out again. Also, the cause may be poor-quality soldering of the service pipe or a malfunction of the new filter-drier, which quickly becomes clogged.
Is freon R600a dangerous for humans?
In small quantities contained in a household refrigerator (about 30-50 grams), isobutane is not toxic to humans for short-term inhalation in a ventilated area. However, it is explosive when mixed with air. The danger is the concentration of gas in a closed space in the presence of a spark. With scheduled refueling, the risks are minimal.